250 hp and reliability?

gvanminnen · Post by **gvanminnen** » Sun Jul 26, 2009 4:37 pm

I have a b18ft engine with a t25 turbo and a lot of small things changed.

I think I can rach the 250 hp but it have to be reliable. Which parts need to be replaced?

I have saw some topics here and there are people with more than 200 and 250 hp. But which clutch have they and gearbox?
I have now a m59 gearbox but I want a stronger one and longer ratio's.

Sorry for my bad english and I hope you can answer my questions.

Soon I wil do some dynoruns with 350cc injectors and adjust the ecu.

V480TI · Post by **V480TI** » Mon Jul 27, 2009 7:44 pm

A T25 that has capability to make 250 hp's ??
Are you sure ??

greetz

fox313 · Post by **fox313** » Mon Jul 27, 2009 8:19 pm

t2turbo

Horsepower 140 - 225
Displacement 1.4L - 2.0

t25

Horsepower 170 - 270
Displacement 1.4L - 2.2L

gtr28

Horsepower 250+
Displacement 2.0L +

replase turbo, or make volvo 1.7 twin turbo.

V480TI · Post by **V480TI** » Mon Jul 27, 2009 8:37 pm

Didn't expect that to be honest.

Thanks and greetz

Jopo · Post by **Jopo** » Tue Jul 28, 2009 12:08 am

Sry for my post about LPG, didnt read your post properly - will post this sumwhere else, SRY

gvanminnen · Post by **gvanminnen** » Wed Jul 29, 2009 7:42 pm

I was today by the tuner but he told me the ecu can't be tuned.

Now I have a Air fuel ratio from Innovate and i want to tune my car by myself. I have 250cc injectors so I hope he will run fine with no throttle.

But I can't get higher boost than 0,9 bar.
I read that you can remove restistor r206 and I have done this but no resulst. I still can't run more boost.

Somebody who can tell me how to run more boost???

pol · Post by **pol** » Thu Jul 30, 2009 9:28 am

There were a lot of posts a few years ago about changing the resistance of a few resistors inside the ECU. Search the forum for "resistor + ecu" and have a read through.

I would like to have a tinker with these as I believe you can also alter the ignition timing and other values but it would need to be set up safety to test.

Some people have mentioned that on some ECU's, certain resistors appear to be replaceable (perhaps to tune the car for different countries / climates?).

I believe tuning companies will modify the resistors and Rich can modify the resistors and change the fuel map?

I'd be happy with just being able to adjust the ECU myself. It'd be nice to dig up which resistors do what.

There has also been mention of the ECU 'detecting' changes to the resistor values and then lowering the boost back to standard. I'm not sure how it'd be possible but that has definately been mentioned on the forum before.

Thanks,

pol

gvanminnen · Post by **gvanminnen** » Thu Jul 30, 2009 3:22 pm

My chip is tuned by Rica and maybe I will call them to change the resistor so I can run 1.5 bar.

Knows somebody here how much the resistor must be?

fox313 · Post by **fox313** » Thu Jul 30, 2009 8:41 pm

if really to say, dont do it, my friend was driving at 1.2 boost.

Has alloyed 2 pistons. If it is already valid in plans to fry the engine are necessary morÃÂµ better piston. Unless at 0.9 boost with the chip 6 sec and 1.2 - 5.5 sec. is there a great difference?

If is, then success in the project.

gvanminnen · Post by **gvanminnen** » Thu Jul 30, 2009 8:49 pm

I think his fuel was to poor if the car is running fine it will no problem.

I have a AFR so I can controll it and if it's not good I will lower the boost.

But it want that safemode gone. How many Kohm do I need in r207.

Sieger · Post by **Sieger** » Fri Jul 31, 2009 7:25 pm

kijk even in mijn toppic voor de weerstanden, ik heb nu r206 weg gebrand. en rijdt nu op 1,3 bar zonder problemen.

gvanminnen · Post by **gvanminnen** » Fri Jul 31, 2009 8:55 pm

I have also removed r206 but no differents. Maybe r207 have a higher resistants by you.

Ettore Bugatti · Post by **Ettore Bugatti** » Fri Jul 31, 2009 9:35 pm

Why not use a potmeter?

Sieger · Post by **Sieger** » Sat Aug 01, 2009 8:57 am

a potmeter works fine 2

I have contact with a guy with the nickname scoff @ www.rtoc.org.

he can also do some kind of richmod. it is a bit more brutal acording to him. more boost no more solenoid. and it cost less more

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gvanminnen · Post by **gvanminnen** » Sat Aug 01, 2009 6:47 pm

I already have a chiptuning from Rica and I think it is the same.

I have put 5,4 kohm extra on r207 and I can handle almost 1,1 bar.

But r207 is connected to a other thing on the ecu so I don't know what I change with that.

I think 10 Kohm is needed for 1,3 bar.

Full throttle I have on my AFR 10,5 which is too much but my fuelrail is already on 2,5 bar? Can I change more for less fuel with full throttle.

Sieger · Post by **Sieger** » Sun Aug 02, 2009 11:46 am

try to make a bypass pipe that excludes the MAF, pipe needs to be 20 mm till 30 mm to get the best AFR

this was done by a guy that also tunes B18ft ecu's
The best result this guy had was just simpley make a hole in de pipe after the MAF.

Rapid-R5 · Post by **Rapid-R5** » Mon Aug 03, 2009 1:50 am

I have an ECU thats been tampered with by ''scoff'' from renault turbo owners club (rtoc), and yes its aggresive, it works well, never had any problems with it......apart from destroying front tyres alot!

steve

Volvo 480 Club Europe

250 hp and reliability?

250 hp and reliability?

T25

T25

Maybe look into LPG

ecu